Bearing for yarn spools and the like



March l0, 1925.

Ef F. HATHAWAY BEARING FOR YARN SPOOLS AND THE LIKE F1ed May 20, 1922 2Sheets-Sheet 1 f? /2/ wauw March 10, 1925.A

E.. F. HATHAWAY BEARING FOR YARN -SPOOLS AND THE LIKE Filed May zo',1922.

Patented Mar. 10, 1925.

UNITED STATES TENT oFFicEe* ENGINEERING COMPANY,` OE BOSTON,l

MASSACHUSETTS.

BEARING non YARN srooLs Ann THE LIKE.

application flied Mayv 2o,`

To @ZZ whom t muy concern:

Be it known that I, EDGAR F. HATHAWAY, a citizen of the United States,and resident of lVellesley, in the county of Norfolk and State ofMassachusetts, have invented cer-- tain new and useful Improvements inBearings for Yarn Spools and the like, of which the following is aspecification. j

The present invention relates to journal bearings and is particularlyintended for use in retaining the journals of yarn spools in operativeposition for rotation in a tube frame while making simple and reliableprovision for quick and convenient removal of the spools from theirbearings with a minimum of lost time or lost motion in the operation,while preferably requiring the use of but one hand so as to leave theother hand free to handle the yarn spool.

As is well known in the art, tuft tubes for weaving pile fabrics ofconsiderable width, such as Axminster rugs, are provided withyarn-carrying spools made in longitudinal sections which are alignedalong a common axis to rotate in unison by means of interlocking endengagement, each section being journaled at its opposite ends inproperly aligned bearings mounted on the tube frame. ris frequentremoval of one or all of these sections is necessary it is highlydesirable that such removal shall be made very quickly and easily butwithout sacrificing absolute security of thebearing mounting of thespool since the accidental release of the spool, during the weavingoperation, would involve a great deal of damage and lost labor inrepairing the mischief.

TWith these objects in view, the present invention consists, generallyspeaking, of the combination of two cooperating pivotal` ly connectedbearing members provided with segmental bearing recesses arranged toform a complete journal bearing for the vreception and retention of aspool journal or trunnion when the members are in operative or closedrelationship while permitting their instant separation preferably bymeans of practically a single movement of one hand, locking means beingprovided to securely hold the bearing members in closed relation and tobe released in the act of seizing one i922. sei-iai No. asa/15a.4

of said members to open the bearing `for the removal. ofthe spooltherefrom. A further feature of the invention is that the closing of thebearing acts to automatically lock the bearing members once more in oerative or closed relation, thereby avoil ing any damage that might becaused by the neglect of the operator to himself attend to the lockingof the bearing. y y

These and yother features of'the invenn tion will be particularlyexplained in the` following specilication and will be defined in theclaims hereto annexed.

In the accompanying drawings I have illustrated several of the forms ofconstruction and arrangement used in thefembodin ment vof the principlesof this vinvention .f in which:

Figure l is a side elevation ofa complete bearingstructure with' oneside'of thesupporting bearing bracket removed. f

Figure 2 is an elevation taken at right angles to the plane of Figure 1on the direct line 2-2 yof Figure 1.

4Figure 3 is an end view of the complete device. l l i Y. f

Figure 4. is `a side elevation showing the locking latch released readyto permit the opening of the bearing. j ,j i

Figure 5 is a side elevation showing the bearing completelyV open.

Figure 6 is a perspective view of a slightly modiiied form oftheinvention.

' Figure 7 is a detail bearing bushing.

Figure 8 is a side elevation showing another modication of theinvention.

Figure 9 is a view at right angles to the plane of Figure 8. l

Figure 10 is al side elevation showing the latch released ready topermit the opening of the bearing.

Figure 11 is a detail view -of .a .modified form of bushing.k

In the practice of this invention, accord'- ing to the form illustratedin Figures l to 5, I' provide a suitable bracket or support for thebearing members which includes two parallel standards or plates' 1,'having right-angled base flanges 2, to',l form supporting feet'by whichthey are secured to MassAciiUsET'rs' A sonnen-Arlon ony view of thesegmental the tube frame orother devicelupon which I rotation (Figures1, 4 and itwill be understood that no releasing or opening movement ofthelbeari-ng members 7 is possible unt-il' the.

the device is to be used. These parallel spaced plates carry at theirupper ends a semi-circular bushing 3 formed with an eX# tei-nal medialribs forming a separating or spacing shoulder interposed between thenotched or recessed outer ends ofv thebracket plates 1, and securedthereto in any suitable vmanner as by spinningover the opposite thinside edges, the end edges of the bearing bushing being heldin placejb'yhook'- like projections 1a overhanging, the opposite ends of thebushing. Any suitable method, however,7 of: securing the. bushing' inplace be used. Mounted inthisbearing is: aqtransverse fuleral pin oraxleI ,53'

and a transverse stop pin- 6. l @nl the trans;` verse fulcral pin -5 arepivot-ally mounted two similarly for-med bearing; arms or inemlbers 7-segmentally recessed as; at 8 to coinplete the circle around theljournal of; a spool to eii'ectually retain saidjournal ir position forrotation@ said bearing. The' principal` thrust of t'hcA bearing comesupon apart and carry a transverse pivotal latch pilnwQ forsupportingbetween the parallel bearing members or pl'a'tes 7 an interposed: latchmember 1:0 whichy has bearing support upon said pinfandi has a ldownwardeX- tension formedl with: a stop shoulder as shown at 11 to normallyyrest" against the transverse stop pi-n- 6 against which y is pressed bymeans of a spring 13 engaging the extension 12 of the rear end. for thatpurpose. v i

Since the latch is mountedl eccentrically off the fulcr-al axis v5 onwhich the pivotal bearing members 7 are supported, andv since the stoppin 6`y is soA disposed asV toA prevent in a contraclockwise directionstop shoulder 11 of the lat'chqlO is disengagedv from or moved out ofline withrthe pin 6. This release v of the latch is vac-y complished inthe forms shown: 'ink Figures 1I toGi-nclusivdby pressure against .theupper orfree end of the latch 1.0 whicvlnas shown in Figure 1,*normallyis wider than the cor responding portion of the arm 7 'and' projectsbeyond said arm. so that pressure against the latch 10, tending tol moveit inthe direction that arms 7 must swing to open the journal bearing,which tends to release v the latch from locking' position and Vallowthepivoted bearing membersto swing away to uncover the journal and allowthe spool to be removed from its bearings. u

It will be seen that the releaseofl the latch and the opening of thebearing may be -eected by a single fo-rward movement in pino, but' inview of the approach of the pivotal axis of the latch nearer to the stoppin by the opening movement of the bearing member 7, the shoulder 11 isknot engaged with the stopv pin.. thereiore,l the latch will stili haveits righthand edgeadvanced beyond the corresponding -edgefof the arm 7.In this position `the rem-oralof the journalforces the latch backagainstits tension spring 13 thereby permitting withdrawal of the spool,and also permitting the subsequent. insertion of anew ln the openposition,

spoolby pressure ofthe journal against the latch in open position sincetheI spring 13 allows it to yield under suchY pressure.: l"ll-headvantage of this arrangement is: that when one ofv the interlocking endjournals of a spool'y section is inserted the latch tends to keepitinplace while. ail-lowing the inter loekingjournal of the neXt/ spoolsection to be readily inserted. without having vto especially manipulatethe latch. When both adjacent interlocking journals are in place inthe.bearing, pressure exerted by the tinger as shown in` Figure 5, closesthe bearing andthe -lateh .is automaticallyv pressed by its springintolocking engagement lwith stop pin- 6..` y

` In- Fignure 6A Ihavev-show-n a form of inventionthat is essentiallythe' same as that.

showninl Figures 1 to- 5 but is modiiied, to

the extent of using only one pivotal bearing arm 7 eng-one side 'of thelatch 10 and is further modilied bythe use of another form ofy spring 15which is wound. around a supporting post 16 with one end thrustingagainst the fulcial pin 5 and the other end bearingjagai-nst the rearend of the latch 10. In both. forms ofthe invention the pivotal bearingarms are transversely formed with a shoulder 7LL to limit theA swingingmovement thereof in openposition, anda similar shoulder is formed at1'()a on'the latcl'ilO to limit thepivotal movement *of the latch onitsaX-is.V f l v I Iny the modification shown in Figures 8 to 1'0 thebracket 1', is of the same construe tion as 'before and is provided witha fulcral pin 5 .and a stop pin 6 as in the other forms. The form ofthepivotal bearing member, however, is somewhat changed al-` thoughfunctioning precisely as before. ln

this form the pivotal bearingmember 20, is

sion lQlftof'the locking latch 21 so disposed as to cause the spring totend to produce rotation of the latch 20, on its pivotal axis 9, in thesame direction as the direction of rotation of the bearing arm 20, whenmoving to open position, instead of tending to produce a rotationopposite to the rotative movement of the bearing arm whenopening as inthe forms shown in Figures. 5 andv 6. ln consequence of this differentdirection of the releasing movement of the latch it becomes necessary,in order to release the latch, to pinch the upper end of the latch inthe opposite direction to the normal opening rotation of the bearing arm20, preliminaiy to opening the bearing, as illustrated in Figure 10. Theadvantage of this arrangement is that an accidental and external blowagainst the latch that tends to release the latch will not result inopening the bearing since the direction of movement necessary to releasethe latch is directly7 op-y posite to the direction of movementnecessary to open the bearing. rlhe pinching action, however,'is veryconveniently effected by simply compressing this portion of the devicebetween the thumb and linger, as shown in Figure 10, as a part of theopening operation so that no time is lost and only one hand is needed toperform this operation. 1n this case the bearing bushing 26 is shownwithout any separating rib or flange to separate the side members l, etthe supporting bracket.

With any ot' the constructions and arrangements shown it will be obviousthat the operator can instantly open the bearing by a single movement ofthe hand which is so easily performed that his eye-sight and attentioncan be directed to other parts of the work which demand it, and yet theournals or trunnions of the spools or shafts are securely locked againstjarring or accidental blows when the tube frame is in use. greatlyfacilitates and expedites the insertion and removal of spools from thetube frame and gives all'the required security.

It will be observed that practically all the parts of the device exceptthe spring, may be formed of stamped or pressed metal so that thedevice' can be very cheaply made and assembled, the bearing bushingbeing preferably used as a convenient means for giving a wide bearingsurface for the journals of the yarn spools.

What I claim is:

1. A bearing construction for a yarnspool journal or the like, embracingin coinbination two cooperative bearing members pivotally connected topermit movement of one toward and away from journal-retainingrelationship to the other, a catch carried by the movable member, saidcatch being released by the application of pressure in a directiondiverse to the direction of the opening movement of the movable Thisbearing member, whereby the accidental releasing of the catch does nottend to open the bearing, substantially as described.

2. A bearing construction for a yarnspool journal embracing incombination two bearing members one of which is pivotally. f

connected with the other and movable to and` from bearing-closingposition, means carried by the pivotal member for positively 3. Abearing construction for yarn-spool journals, embracing in combination atixedA bearing member, a movable bearing member pivotally connectedtherewith, at catch mounted on the movable member' and being formedtointerlockingly engage a fixed stop arranged on the same side of thejournal bearing as is'the pivotal axis of the pivotal member, said catchacting normally to 'posiV tively prevent the opening of the `bearinguntil released from said stop, substantially as described.

4. .er separable journal bearing device for a yarn spool embracing inits construction a fixed bearing member, a movable bearing memberpivotally supported thereby in pon sition to enclose a rotatable spooljournal, a pivotal latch mounted on the movable member eccentrically'ofthe pivotal axis of said bearing member and provided with a stopshoulder arranged to engage a stop on the fixed member to preventrotation ofthe movable bearing member in a direction tov open thebearing, said stop shoulder being movable out of position to engage thefixed stop by rotation of the latch on its lown pivotal axis in adirection reverse to the opening movementof the pivotal bearing member,substantially as described.

5. A separable bearing device for a rotatable shaft journal, embracingin its construction a fixed bearingmember formed with an openbearing.foi-supporting a rotatable shaft journal, a coacting pivotalbearing member disposed to act in conjunction with a fixed bearingmember to conne the shaft vjoarnal in operative position, a spring latchmounted on'the pivotal bear-y ing member and normally disposed to enopenthe bearing, substantially as described.

(3. A separable bearing device for a yarn spool, embracing in itsconstruction pivotally connected bearing members arranged to inoloseva.. rotatable sliatt jounnoil in opera; tive position for rotation, a.lfitcli, pivotecl upon 2i, pivotnl a-X-is mounted` upon iincl'inov.nable With one ot' said beaming members, sai-d latch liafuinb 'itsTpivotal axis` eccentricl toI und parallel? Wit-li` the tule-ralf exisofi-ts snp? porting-liegir11--1g nienjiber and bei-ng ploinplell 'withci poIitgon aelgipted to; normlflzly. abut against sto-p member toprevent openingxf of the bearing, while beilieg- 'nisinuelly Inov'- ableoutolf' posit-ion tjo engage sai l stop` when opening tlie bearing7substantially es, die.-

scribed.l

7;k A separable bearing device 'tor e spool 1 Journal, embracing 1n itsconstrnet-:Lony etixedy ineniloer of stznnped metal provided ,wit-h unopen bearing' bushing, a pivotal' stamped inetul plate formed to Gonotwith tliebearing-bushingto @Online it rotatable slnirlft journal inoperative position,- and vpivotnl'ly'mounted on said lnen'ibeiL to per,`

, emesse.:

11102- Plete being arranged: in juxtenestpe topermittliein to', beopeigeted by; the lingers 0f onehand;:Substantially as, described?.

8.y A separable bearing deviene for quick insertionl enel removal ofit.; spoel jjournzil ingl the., journal in: proximity to similzirlonerlianging portion, of its., supporting bear-V ing nielnbeigtwliereby.the pino-hing together of these two, overhanging members releases. thel'atoli and permits the bearing, member to be ssii/,ungv open., zuidper-mits thelatelito yieldebly. overhangptli-e bearing. when opensuiioienftly tol not; as aJ yielding keeperto retain an interposedjournal: seated. inl the beaming sulostentiiellyY deseiii-loecl.

In witness wlliereet, 'I liever sti-lisoriloed tlie abovespeeiiientien,-

nneiin n. nATnAWAY

